Abstract
For the purpose of developing new-typed multifunctional composite nanofibers, novel composite nanofibers with tunable color-electricity bifunctionality have been successfully fabricated via facile one-pot electrospinning technology. The obtained bifunctional composite nanofibers are composed of polyvinyl pyrrolidone (PVP) as the matrix, Tb(BA)3phen and Eu(BA)3phen (BA = benzoic acid, phen = phenanthroline) as luminescence materials and polyaniline (PANI) as conductive material. Scanning electron microscopy, energy dispersive spectrometry, fluorescence spectroscopy and Hall effect measurement system are used to characterize the morphology structure and properties of the [Tb(BA)3phen + Eu(BA)3phen]/PANI/PVP composite nanofibers. The results indicate that the bifunctional composite nanofibers possess excellent photo luminescence and electrical conduction. The emitting color of the luminescent composite nanofibers can be tuned by adjusting the mass ratios of Tb(BA)3phen, Eu(BA)3phen and PANI in a wide color range of red-yellow-green under the excitation of 297-nm single-wavelength ultraviolet light. The electrical conductivity reaches up to the order of 10−4 S/cm. The luminescent intensity and electrical conductivity of the composite nanofibers can be tunable by adding various amounts of Tb(BA)3phen, Eu(BA)3phen and PANI. The bifunctional composite nanofibers are expected to possess many potential applications in areas such as color display, electromagnetic shielding, molecular electronics and biomedicine.
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Acknowledgments
This work was financially supported by the National Natural Science Foundation of China (NSFC 50972020, 51072026), Specialized Research Fund for the Doctoral Program of Higher Education (20102216110002, 20112216120003), the Science and Technology Development Planning Project of Jilin Province (Grant Nos. 20130101001JC, 20070402), the Science and Technology Research Project of the Education Department of Jilin Province during the eleventh five-year plan period (Under Grant No. 2010JYT01), Key Research Project of Science and Technology of Ministry of Education of China (Grant No. 207026).
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Lun, K., Ma, Q., Dong, X. et al. A single flexible nanofiber to obtain simultaneous tunable color-electricity bifunctionality. J Mater Sci: Mater Electron 25, 5395–5402 (2014). https://doi.org/10.1007/s10854-014-2318-z
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DOI: https://doi.org/10.1007/s10854-014-2318-z